| // Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef RUNTIME_VM_LONGJUMP_H_ |
| #define RUNTIME_VM_LONGJUMP_H_ |
| |
| #include <setjmp.h> |
| |
| #include "vm/allocation.h" |
| #include "vm/thread_state.h" |
| |
| namespace dart { |
| |
| class Error; |
| |
| class LongJumpScope : public StackResource { |
| public: |
| LongJumpScope() |
| : StackResource(ThreadState::Current()), |
| top_(nullptr), |
| base_(thread()->long_jump_base()) { |
| thread()->set_long_jump_base(this); |
| } |
| |
| ~LongJumpScope() { |
| ASSERT(thread() == ThreadState::Current()); |
| thread()->set_long_jump_base(base_); |
| } |
| |
| jmp_buf* Set(); |
| DART_NORETURN void Jump(int value, const Error& error); |
| |
| private: |
| jmp_buf environment_; |
| StackResource* top_; |
| LongJumpScope* base_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LongJumpScope); |
| }; |
| |
| } // namespace dart |
| |
| #endif // RUNTIME_VM_LONGJUMP_H_ |